22 and this water that brings a curse will go into your bowels, and make your body swell, and your thigh fall away.” The woman shall say, “Amen, Amen.” 23 “‘The priest shall write these curses in a book, and he shall blot them out into the water of bitterness. 24 He shall make the woman drink the water of bitterness that causes the curse; and the water that causes the curse shall enter into her and become bitter. 25 The priest shall take the meal offering of jealousy out of the woman’s hand, and shall wave the meal offering before Yahweh, and bring it to the altar. 26 The priest shall take a handful of the meal offering, as its memorial, and burn it on the altar, and afterward shall make the woman drink the water. 27 When he has made her drink the water, then it shall happen, if she is defiled, and has committed a trespass against her husband, that the water that causes the curse will enter into her and become bitter, and her body will swell, and her thigh will fall away: and the woman will be a curse among her people.
Matthew Henry's Commentary on Numbers 5:22-27
Commentary on Numbers 5:11-31
(Read Numbers 5:11-31)
This law would make the women of Israel watch against giving cause for suspicion. On the other hand, it would hinder the cruel treatment such suspicions might occasion. It would also hinder the guilty from escaping, and the innocent from coming under just suspicion. When no proof could be brought, the wife was called on to make this solemn appeal to a heart-searching God. No woman, if she were guilty, could say "Amen" to the adjuration, and drink the water after it, unless she disbelieved the truth of God, or defied his justice. The water is called the bitter water, because it caused the curse. Thus sin is called an evil and a bitter thing. Let all that meddle with forbidden pleasures, know that they will be bitterness in the latter end. From the whole learn, 1. Secret sins are known to God, and sometimes are strangely brought to light in this life; and that there is a day coming when God will, by Christ, judge the secrets of men according to the gospel, Romans 2:16. 2 In particular, Whoremongers and adulterers God will surely judge. Though we have not now the waters of jealousy, yet we have God's word, which ought to be as great a terror. Sensual lusts will end in bitterness. 3. God will manifest the innocency of the innocent. The same providence is for good to some, and for hurt to others. And it will answer the purposes which God intends.